<html>
<head><tittle>Navigatord对象</tittle></head>
<body>
<scrip language="javascrpt">
<!--
var appname = navigator.appName;
var appversion = navigator.appVersion;
document.write("你使用的是"+appname+"浏览器<br>版本号为:"+appversion);
-->
</script>
</body>
</html>
<head><tittle>Navigatord对象</tittle></head>
<body>
<scrip language="javascrpt">
<!--
var appname = navigator.appName;
var appversion = navigator.appVersion;
document.write("你使用的是"+appname+"浏览器<br>版本号为:"+appversion);
-->
</script>
</body>
</html>
<head> <title>Navigatord对象 </title> </head>
<body>
<script language="javascript">
<!--
var appname = navigator.appName;
var appversion = navigator.appVersion;
document.write("你使用的是"+appname+"浏览器 <br>版本号为:"+appversion);
-->
</script>
</body>
</html>
应该是
<script language="javascript">
<html>
<head> <title>Navigatord对象 </title> </head>
<body>
<script language="javascript">
<!--
var appname = navigator.appName;
var appversion = navigator.appVersion;
document.write("你使用的是"+appname+"浏览器 <br>版本号为:"+appversion);
-->
</script>
</body>
</html>